28.  Variation of Cavity Pressure Depending on Processing Temperature at Injection Moulding of the Polymers Used for Manufacturing of Sport Products

Authors: G.R.E. Maries, G. Bandur, G. Rusu


Abstract:

This paper is establishing the influence of the processing temperature on the in-mould (cavity) pressure at injection moulding of the polymers used for manufacturing of sport products. The processed polymers were: polyoxymethylene (POM, polyacetal), polyamide 6,6 (PA 6,6), polycarbonate (PC), thermoplastic polyurethane (TPU) and polypropylene (PP). The injection machine employed was an horizontal ENGEL G/11/10/116/3, model VC 500/110 TECH, made in 2002. The temperature in the injection cylinder nozzle was measured through a DYNISCO Ti422J thermocouple. The cavity temperature was determined by means of a thermocouple temperature probe, model 2024T, produced by Digitron Instrumentation Ltd. and the cavity pressure was measured with a transducer, model IDA, made by Dynisco Europe GmbH.


Keywords: injection moulding , pressure, temperature

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